NinjaScript tutorials from someone who’s been writing it since NT6.5. Start at the top if you’re new — or jump to whatever you’re stuck on.
In NinjaScript, the built-in tools like Series<T> and Values[] are powerful — but sometimes you need more control over your data. Maybe you want to: That’s where Lists, Dictionaries, and Arrays come in. These C# structures give you a flexible, powerful way to handle historical data exactly the way you need for advanced custom indicators…
If you’ve been building indicators or strategies in NinjaTrader 8 for more than five minutes, you’ve probably found yourself writing the same utility methods over and over again. ✅ Round to tick size✅ Get a unique ID✅ Grab a moving average✅ Change brush opacity…and on and on. Sure, it works… but after a while, your…
A Beginner’s Guide to Reusable Logic in NinjaTrader. As your NinjaScript indicators or strategies grow more complex, your code can start to get messy — fast. That’s where methods (also known as functions) come in. ✅ In plain English: A method is a reusable block of code that performs a task — so you don’t…
A Complete Beginner’s Guide to Coloring in NinjaTrader. When you build custom indicators or strategies in NinjaTrader, you’ll often want to control the color of what you draw — whether it’s a trend line, a signal marker, or even the background of the chart. Brushes are how you manage all of that. ✅ In plain…
A Complete Beginner’s Guide to Static Visual Markers. After learning about Plots, which dynamically update on every bar, it’s time to explore a simpler but powerful tool in NinjaTrader: Lines. Lines are static, horizontal markers that you can add to your indicators.They don’t change bar-by-bar — they stay exactly where you place them, providing clear…
A Complete Beginner’s Guide to Visual Outputs (Plots). Once you understand how NinjaTrader stores values with Series<T>, the next step is learning how NinjaTrader actually displays your indicator’s output visually — through Plots. ✅ Plots are the visual bridge between your raw calculations and the chart the trader sees. Every time you add a plot…
A Beginner-Friendly Guide to Custom Data Storage in NinjaTrader. In NinjaTrader, almost everything you see — from price plots to moving averages to volume bars — is powered by something called a Series. Series<T> is the engine behind storing, tracking, and referencing information bar-by-bar as time moves forward. Learning how to properly use Series<T> will…
Where most of your trading logic happens. In our last articles, we explored NinjaScript structure, variables and properties, and how NinjaTrader manages a script’s lifecycle with OnStateChange(). Now it’s time to dive into the true “heartbeat” of NinjaScript development: OnBarUpdate() — where most calculations, decisions, and signals happen. 👉 Save this official NinjaTrader Help Guide…
Understand when your indicator or strategy does what — and why it matters. In our previous article on Variables and Properties, we covered how to store and manage information inside your NinjaTrader indicators and strategies. Now, it’s time to step back and look at something even more fundamental: when your code runs, and why different…
How to store, manage, and expose values inside your indicators In the last article, we broke down the basic structure of a NinjaTrader indicator. Now it’s time to start making your indicators do real work. When you build custom indicators, you’ll quickly realize that not every value is hardcoded. Sometimes you need to store information…
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